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Explain Ash Flow

Ash Flow Explained!

Ash Flow Technical Terms

Ash Flow: A highly heated mixture of volcanic gases and ash, traveling down the flank of a volcano or along the surface of the ground; produced by the explosive disintegration of viscous lava in a volcanic crater, or by the explosive emission of gas-charged ash from a fissure or group of fissures. The solid materials contained in a typical ash flow are generally unsorted and ordinarily include volcanic dust, pumice, scoria, and blocks in addition to ash. (Also called a pyroclastic flow.) Compare - nueƩ ardente, lahar, pyroclastic. GG

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